Reply to 1 song per CD Vs 2 songs per CD

Question for a the CDJ owners out there that still use or have used actual CD's.

Did You burn one song per CD or two songs per CD?

Weighing the pro's and con's right now and the one problem that keeps on poping up is what happens if you want to mix a couple of songs that are on the same CD. I'm sure this could be solved with great orginization, but for the sake of conversation I'm seeking input.